What is the Least Common Multiple of 85664 and 85670?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least Common Multiple of 85664 and 85670 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85664 and 85670, than apply into the LCM equation.

GCF(85664,85670) = 2
LCM(85664,85670) = ( 85664 × 85670) / 2
LCM(85664,85670) = 7338834880 / 2
LCM(85664,85670) = 3669417440

Least Common Multiple (LCM) of 85664 and 85670 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85664 and 85670. First we will calculate the prime factors of 85664 and 85670.

Prime Factorization of 85664

Prime Factorization of 85670

Now multiplying the highest exponent prime factors to calculate the LCM of 85664 and 85670.

LCM(85664,85670) = 2⁵ × 2677¹ × 5¹ × 13¹ × 659¹
LCM(85664,85670) = 3669417440